Review
Goodman's 3-ton upflow system represents solid midmarket value for homeowners tired of aging furnaces and underperforming AC units. The brand has built reputation through no-frills engineering and straightforward reliability rather than cutting-edge features. This particular configuration pairs a high-efficiency furnace with modern cooling technology, delivering meaningful energy savings compared to 10-15 year old equipment still running in many homes today.
The furnace achieves 97% AFUE using modulating burner technology that fires at multiple stages to match heating load, eliminating wasteful full-capacity cycling. The air conditioning side delivers 18 SEER2 efficiency through a two-stage scroll compressor and PVC-compatible exhaust design. Variable-speed ECM blower adjusts cfm up to 1,600 based on demand, keeping electricity consumption lower than fixed-speed motors. These efficiency ratings qualify the system for ENERGY STAR certification, translating to lower utility bills year-round.
Pros & Cons
Pros
- 97% AFUE furnace means only 3% energy loss, reducing monthly heating bills significantly on natural gas or propane
- 18 SEER2 cooling efficiency qualifies for ENERGY STAR, lowering AC operating costs in summer months
- Variable-speed ECM blower motor automatically adjusts airflow, improving comfort and reducing electricity draw versus fixed-speed units
- Modulating gas burner fires at multiple stages, matching capacity to actual heating demand rather than running full blast
- Two-stage condenser compressor ramps cooling output up or down, enhancing efficiency and reducing runtime noise to 71 dBA
- PVC exhaust compatibility simplifies installation in tight spaces where traditional metal flue venting is difficult
Cons
- Price listed as $89 appears incomplete or placeholder, not reflecting typical installed system cost of $4,000-$6,000
- 5-ton tonnage stated in specs conflicts with 3-ton product title, creating specification confusion for sizing verification
- 80,000 BTU heating capacity may undersizes homes larger than 2,500-3,000 square feet in very cold climates
- 10-year warranty requires online registration, which some homeowners find inconvenient or forget to complete
- 71 dBA sound level at full capacity is moderate-to-loud, potentially noticeable in quieter homes or bedrooms
Who Should Buy
Best For
Budget-focused homeowners in moderate-to-cold regions who prioritize heating efficiency and want 18 SEER cooling without paying for premium brands. Contractors installing replacement systems in multi-story upflow configurations will appreciate the variable-speed blower and straightforward upflow design.
Consider Alternatives If
Homeowners in very large homes over 3,500 square feet should verify tonnage specs before committing, as stated tonnage conflicts may indicate sizing issues.
Installation
Upflow installation fits standard attic-mounted or basement configurations common in residential construction. PVC exhaust compatibility simplifies flue routing versus traditional metal venting, particularly valuable in retrofit applications. The 21-by-21-by-30 inch footprint suits most standard equipment closets. Technicians will need 208-230V single-phase power with 21.9 to 35 amp breaker sizing, standard for most homes. Sweat valve connections on 3/8-inch liquid and 7/8-inch suction lines follow industry norms.
Warranty & Reliability
The 10-year parts warranty covers manufacturing defects when registered online, providing meaningful protection against premature compressor or heat exchanger failure. Registration is straightforward but mandatory, so new owners must complete this immediately after installation. Goodman's warranty doesn't cover labor, so clarify installation labor guarantees with your contractor separately. Extended coverage options may be available through dealers or service plans.
Specifications
| SKU | TX3N4 |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 35,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 2.500000 |
| Feature | Spec |
| AHRI Certificate Number | 7424266 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Configuration | Upflow / Downflow |
| Energy Star | Yes |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Height | 30" |
| Width | 21" |
| Depth | 21" |
| Resources | CAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here. |
| SEER1 (Efficiency) | 18 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 35 amps |
| Min. Breaker Size | 21.9 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
Frequently Asked Questions
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